“…Introduction. -The determination by laser soundings (lidar technique) of physical parameters and minor constituent concentrations in the atmosphere is a continuously expending experimental field [1]. The usual spectral requirements on linewidth and line positioning accuracy for atomic or molecular spectroscopy are more difficult to fulfil duel to the use of high energy pulsed lasers with narrow line emission necessary for remote measurements.…”
“…Introduction. -The determination by laser soundings (lidar technique) of physical parameters and minor constituent concentrations in the atmosphere is a continuously expending experimental field [1]. The usual spectral requirements on linewidth and line positioning accuracy for atomic or molecular spectroscopy are more difficult to fulfil duel to the use of high energy pulsed lasers with narrow line emission necessary for remote measurements.…”
A versatile high-spectral-energy density dye laser suitable for lidar applications and high-resolution spectroscopy is reported. The dye laser includes an oscillator and preamplifier and two amplifier stages. With transverse pumping by the second harmonic of a Nd:YAG laser, an efficiency of 55% was achieved at 589 nm, providing 165 mJ in a single-longitudinal mode. Second harmonic generation results in a dye laser-to-UV conversion efficiency of 33%. Optimization of dye solutions covering the 565-880-nm range is presented. The laser was also pumped with a ruby laser, producing an output energy of 400 mJ at 770 nm.
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